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Programming & Development Programming & Software

Full-Stack, SaaS, Ecom, Payment Gateway

$35/hr Starting at $25

I provide full-stack development services for SaaS platforms, eCommerce systems, payment integrations, and cloud-based web applications.

With 16+ years of engineering experience and 8 years as a technical lead on a PCI-compliant payment gateway and multi-tenant SaaS eCommerce platform, I can help with both new development and complex existing systems.

I also have hands-on payment processor certification and integration experience with providers including Elavon, First Data, Tsys, paya and other major payment platforms.

Technologies I work with include PHP, Laravel, Python, Wordpress, Shopify, JavaScript, MySQL, PostgreSQL, HTML, CSS, REST APIs, AWS EC2, RDS, Aurora, S3, WAF, Route 53, and related cloud infrastructure services.

Services include:

  • Full-stack web application development

  • SaaS platform development and maintenance

  • eCommerce feature development

  • Payment gateway and payment API integrations

  • Backend architecture and API development

  • AWS cloud setup, deployment, and optimization

  • Database design, performance tuning, and troubleshooting

  • Security, reliability, and scalability improvements

  • Legacy code maintenance and modernization

  • Third-party API integrations

I focus on practical, maintainable solutions that are stable in production and aligned with business goals. I can quickly understand existing codebases, identify root causes, and deliver reliable improvements without unnecessary complexity.

About

$35/hr Ongoing

Download Resume

I provide full-stack development services for SaaS platforms, eCommerce systems, payment integrations, and cloud-based web applications.

With 16+ years of engineering experience and 8 years as a technical lead on a PCI-compliant payment gateway and multi-tenant SaaS eCommerce platform, I can help with both new development and complex existing systems.

I also have hands-on payment processor certification and integration experience with providers including Elavon, First Data, Tsys, paya and other major payment platforms.

Technologies I work with include PHP, Laravel, Python, Wordpress, Shopify, JavaScript, MySQL, PostgreSQL, HTML, CSS, REST APIs, AWS EC2, RDS, Aurora, S3, WAF, Route 53, and related cloud infrastructure services.

Services include:

  • Full-stack web application development

  • SaaS platform development and maintenance

  • eCommerce feature development

  • Payment gateway and payment API integrations

  • Backend architecture and API development

  • AWS cloud setup, deployment, and optimization

  • Database design, performance tuning, and troubleshooting

  • Security, reliability, and scalability improvements

  • Legacy code maintenance and modernization

  • Third-party API integrations

I focus on practical, maintainable solutions that are stable in production and aligned with business goals. I can quickly understand existing codebases, identify root causes, and deliver reliable improvements without unnecessary complexity.

Skills & Expertise

Amazon Web ServicesAPIArtificial IntelligenceChatbotsDocker SoftwareFinancial ServicesGeneral / Other Programming & SoftwareJavaScriptJSONObject-Oriented ProgrammingProgrammingPythonSoftware DevelopmentSQLXML

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